Wrench.



J. H. ANDREWS.

WRENCH.

APPLICATION FILED MAR. 3. 19:7.

Patenmfi Nov 8, 1917.

J me fiver/ems JAMES H. ANDREWS, or wirmrensronr, PENNSYLVANIA.

wnnlvor'r.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed March 3, 1917. Serial No. 152,321.

To all whom it may concern:

Be it known that I, James II. ANDREWS, a citizen of the United tates, and resident of iVilliamsport, in the county of Lycoming and State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of'which the followingis a specification.

This invention relates to new and useful improvements in wrenches, the primary object of the invention is to provide a wrench having a fixed and movable jaw, and means whereby said aws may be quickly and easily adjusted to various operative positions. This type of wrench is primarily intended for use on pipes, rods, nuts, etc, but the same owing'to its adjustment is applicable to various sizes of objects.

Another object of the invention is to provide a device of this character which is easily and simply constructed, inexpensive to manufacture, and one which will be very eflicient in operation.

lVith these and numerous other objects in view my invention consists in the novel feature of construction, combination and arrangement of parts which will be herein re ferred to and more particularly pointed out in the specification and claim.

In the accompanying drawings:

Figure 1 is a perspective view of my new and improved wrench;

Fig. 2 is a side elevation of one end thereof, partly in section.

In describing my invention I shall refer to the drawings in which similar characters of reference designate corresponding parts throughout the several views. The numeral 1 designates the fixed jaw portion of my wrench, that is provided with a shank portion 2 which has its lower end formed to provide a fixed handle 3 for the wrench. The jaw 1 has a laterally projecting loop portion at extending therefrom, and slidably mounted through said portion is the shank portion 5 of a movable jaw 6 which is adapted for coaction with the fixed jaw. The shank portion 5 is somewhat shorter than the, shank portion 2 of the wrench, and these two portions are disposed parallel as is clearly shown in Figs. 1 and 2 of the drawings.

The lower end of the shank portion 5 of the movable jaw is reduced as shown at 7, and pivotally connected therewith is a mov1 able handle 8, which has its upper. end bifurcated as shown at 9, and adapted to straddle the reduced end of the shank 5, and the said parts being pivotally connected by apivot pin 10. The upper ends of the movable handle 8 are curved as shown at 11 to engage shoulders 12 formed by the reduced endof said shank. The inner side of the reduced portion 7 of the shank 5 is cut away or inclined as shown at 13 the purpose of which is obvious.

The portion of the fixed shank 2 adjacent the lower end of the shan 5 of the movable jaw is provided with a longitudinally extending slot 14, which has its inner side substantially flat as shown at 15, while the opposite side thereof is provided with a plurality of semi-circular notches 16. The upper end of the movable handle 8 is pivotally connected with the shank 5 and is provided adjacent its opposite sides with laterally projecting ears 17, that are adapted to engage opposite sides of the fixed shank 2, and carry a pivot pin 18 mounted through the slot 14.

In operation, when the pivot pin 18 that is positioned through the slot 14L is positioned in one of the semi-circular notches 16, it is obvious that upon movement of the handle 8 the movable jaw 6 will slide toward and from the fixed jaw 1. By this means an object may be securely clamped between the coasting jaws. When it is desired to change the relative space between the jaws, the handle 8 is moved laterally with respect to the fixed shank 2, and the pin 18 is disengaged from the notch, and disposed acent the flat side of the slot. Then in this position the movable shank, jaw and handle are adapted to slide longitudinally with respect to the fixed elements of this wrench, so that the space between the jaws may be varied as desired. IVhen the required width has been attained, the pin 18 is moved back into the adjacent notch in the opposite side of the slot and the wrench operated as is obvious. This construction affords an easy and simple means for quickly adjusting pipe and nut wrenches of this character. The adjustment between the coasting aws is determined by the length of the slot 14.

From the foregoing description of the construction and operation of my new and improved wrench, the manner of applying the same to use and the operation thereof will be readily understood and it W1 ll be seen that I have provided a simple and efficient means for carrying out the objects of the invention.

Having fully described my invention, What I claim as new and desire to secure by Letters Patent, is:

A Wrench of the class described comprising a fixed jaw and a slia-bly mounted movable aw coasting therewith, the shank portions of said jaws being disposed substantially parallel, a handle formed by the shank portion of the fixed jaw, the extremity of the shank of the movable jaw being reduced, a movable handle having one end bifurcated 15 and adapted to engage the reduced extrem- Gepiea or this patentraey he obtained for ity of the shank of the movable jaw, a pin pivotally connecting said engaged portion, projecting ears on the bifurcated end of the movable handle adapted to engage 0pposite sides of the fixed shank intermediate the ends of the same, said fixed shank portion having a slot therein with one smooth face and a plurality of semi-circular notches in its opposite face, and a pivot pin carried by the ears and positioned through said last mentioned slot.

In testimony whereof, I afhx my signature hereto.

JAMES H. ANDREWS.

five cents each, by addressing the Gommissioner of Patents Washington, 33. G, 

